class_docstr: Basic building block class for both :class:`BaseDataChunk` and :class:`BaseDataset`
  
  Notes
  -----
  Defines core callback method scaffolding, characterized by the following default behaviors:
      * Eight core callback methods call :meth:`BaseDataCore._on_call_default`
      * :meth:`BaseDataCore._on_call_default` does nothing
      * :meth:`BaseDataCore._do_something` calls the appropriate core callback method
docstr: Invoke one of the defined primary callback methods according to `division` and `point`
  
  Parameters
  ----------
  division: {"exp", "rep", "fold", "run"}
      Time span division identifier of the primary callback method to be invoked
  point: {"start", "end"}
      Time span point identifier in `division` of the primary callback method to be invoked
  *args: List
      Positional arguments to provide on invocation of the specified primary callback method
  **kwargs: Dict
      Keyword arguments to provide on invocation of the specified primary callback method
  
  Notes
  -----
  This method is a simple mechanism for calling a defined primary callback method using the
  strings `division` and `point`, rather than explicitly naming the method
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code: def _do_something(self, division: str, point: str, *args, **kwargs):
      """Invoke one of the defined primary callback methods according to `division` and `point`
  
      Parameters
      ----------
      division: {"exp", "rep", "fold", "run"}
          Time span division identifier of the primary callback method to be invoked
      point: {"start", "end"}
          Time span point identifier in `division` of the primary callback method to be invoked
      *args: List
          Positional arguments to provide on invocation of the specified primary callback method
      **kwargs: Dict
          Keyword arguments to provide on invocation of the specified primary callback method
  
      Notes
      -----
      This method is a simple mechanism for calling a defined primary callback method using the
      strings `division` and `point`, rather than explicitly naming the method
      """
      getattr(self, f"on_{division}_{point}")(*args, **kwargs)
  
imports: import pandas
  from typing import List, Optional
label_desc: Use image node_id 10 for calling the BaseDataCore obj's underlying member method code with example usage: obj._do_something(division, point) without return types